@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  src: local('Roboto'), local('Roboto-Regular'), url(http://fonts.gstatic.com/s/roboto/v15/CWB0XYA8bzo0kSThX0UTuA.woff2) format('woff2');
}
@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 500;
  src: local('Roboto Medium'), local('Roboto-Medium'), url(http://fonts.gstatic.com/s/roboto/v15/RxZJdnzeo3R5zSexge8UUVtXRa8TVwTICgirnJhmVJw.woff2) format('woff2');
}
.apply_tip{
	text-align: center;
	font-size: 20px;
	color:red;
}